Bicycle-frame.



'Patented Oct. 3, 1899.

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UNITED I STATES PATENT OEEICE.

HOSEA W. LIBBEY, OF BOSTON, MASSACHUSETTS BICYCLE-FRAME.

SPECIFICIATION forming part of Letters Patent No. 634,089, dated October 3, 1899.

Application iiled October 1, 1898. Serial No. 692,457. (No model.)

To a/ZZ whom it may concern:

Be it known that I, HOSEA W. LIBBEY, a

citizen of the United States, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Bicycle-Frames, of which the following is a specification.

The object of my invention is to produce a bicycle-frame that can readily and easily be pnt together or taken apart and which will be light and durable; and the invention consists of connecting-pieces, each having a diaphragm near its ends, a screw-threaded hole in said diaphragme, rods having at their ends right and lefthand screw-threads to t the screw-threaded holes in the diaphragms, thel Y k3 is a. section of one of the T connecting-pieces .having diaphragme. Fig. 4 is a View of one of the rods, and Fig. 5 isa section of one of the spacing-tubes.

Arepresents the' connecting-pieces, having a diaphragm a at each end where it is desired to connect a bar. These diaphragms are each formed with ascrew-threaded hole, one thread being right-handed and the opposite one lefthanded. y Y

B is a rod or bar having a right-hand screwthread at one end and a left-hand screwthread at the other. On the central portion of each rod a boss Z9 is secured by shrinking or anyr other convenient manner. The outer surface of this boss may be of any desired form to receive a Spanner, so as to turn the rod, but I prefer to4 form it round and have a hole or holes in its perimeter, as shown, so that itcan be turned by a tool adapted to fit same. A

On each end of the rod B is ttcd a. spacingtube C, of wood, papier-mch, or other suitable material, that has been cut to a length to fit the required distance between the diaphragm c and the boss b, so that when the -rod B is screwed up tight the ends of said tube will abut against the diaphragm a. and the boss h, thus holding all the parts together. It will be seen that by this construction a very light, strong, and rigid frame is produced and one which will be more ornamental .than the ordinary painted frame, as any kindv .of wood desired can be employed for the tubing and a much lighter frame will be produced.

What I claim is- 1 In a tubular bicycle frame, connectingpieces formed with diaphragme having screwthreaded holes, rods having screw-threaded ends anda central boss whereby same may be turned and spacing-tubes of suitable material substantially as set forth.

In testimony whereof I have affixed my sig- 

